How to safely shut down or force shut down Huawei devices

Huawei MediaPad M6 8.4 Huawei MediaPad M6 8.4
Huawei MediaPad M6 10.8 Huawei MediaPad M6 10.8
Huawei P Smart Z Huawei P Smart Z
Huawei Enjoy 9s Huawei Enjoy 9s
Huawei P30 lite Huawei P30 lite
Huawei P30 Huawei P30
Huawei P30 Pro Huawei P30 Pro
Huawei Y Max Huawei Y Max
Huawei nova 4e Huawei nova 4e
Huawei Mate X Huawei Mate X
Huawei Y6 (2019) Huawei Y6 (2019)
Huawei Y7 (2019) Huawei Y7 (2019)
Huawei Y6 Pro (2019) Huawei Y6 Pro (2019)
Huawei Y7 Prime (2019) Huawei Y7 Prime (2019)
Huawei Y7 Pro (2019) Huawei Y7 Pro (2019)
Huawei Y5 lite (2018) Huawei Y5 lite (2018)
Huawei Enjoy 9 Huawei Enjoy 9
Huawei P Smart (2019) Huawei P Smart (2019)
Huawei nova 4 Huawei nova 4
Huawei Honor 10 Lite Huawei Honor 10 Lite